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Area of Science:

  • Biotechnology
  • Synthetic Biology
  • Bioengineering

Background:

  • Three-dimensional (3D) printing enables the creation of complex tissue-like materials with compartmentalized aqueous droplets.
  • Synthetic cells can be constructed using in vitro transcription/translation systems for gene expression.

Purpose of the Study:

  • To develop a light-inducible system for gene expression in 3D-printed synthetic cells.
  • To engineer precise electrical communication between synthetic cells, mimicking neuronal transmission.

Main Methods:

  • Utilized 3D printing to fabricate lipid bilayer-separated aqueous compartments.
  • Developed a light-activated DNA promoter for controlled gene expression within synthetic cells.
  • Expressed protein pores in specific 3D-printed patterns to mediate intercellular communication.

Main Results:

  • Successfully demonstrated light-controlled gene expression in synthetic cells.
  • Engineered synthetic cells capable of rapid, directional electrical communication via incorporated protein pores.
  • Developed a functional mimic of neuronal transmission with precise external control.

Conclusions:

  • Light-activated gene expression in 3D-printed synthetic tissues allows for controlled formation of communication pathways.
  • This approach provides a versatile platform for engineering bioelectronic devices and synthetic neural networks.